Department of Civil Engineering

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Birgönül, Mustafa Talat (188)
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Recent Submissions

A topological approach to crack path detection and crack opening displacement calculation in phase-field models of fracture Babaoğlu, Muhittin; Kaynar, Ozan Özgür; Göktepe, Serdar (2026-08-15) As opposed to discrete approaches, the crack topology is approximated in a smeared manner in phase-field fracture models (PFMs) through a continuous order variable. Although this allows for avoiding the additional intricat...
Effects of different armour units and placement methods on wave loads acting on crown walls in shallow water Demir, Furkan; Güler, Hasan Gökhan; Korkmaz, Alperen Mulayim; Erler, Berkay; Tarakcioglu, Gulizar Ozyurt; Baykal, Cüneyt (2026-07-15) This study presents a comprehensive experimental investigation into the effects of different armour unit types and placement configurations on wave-induced loads acting on the crown walls of mound breakwaters under shallow...
Computational modeling of viscoelastic snap-through in mechanical metamaterials Dal, Sinan Fırat; Göktepe, Serdar (2026-07-01) Mechanical metamaterials are architected solids whose macroscopic response is governed primarily by geometry rather than composition. Instability-induced metamaterials form a crucial subclass within this group, harnessing ...
A GIS-based methodology to assess bus public transit supply-demand gaps ERGÜL, HAZAL; Dalkıç Melek, Gülçin; Tüydeş Yaman, Hediye (2026-06-01) Public transit (PT) is a critical component of sustainable transportation and promoting a modal shift from private vehicles is crucial. However, the accessibility of PT as well as the quality of the service are the major f...
A Numerical Study of the Effects of Density Contrast on Flow, Turbulence, and Mixing at the Negro/Solimoes Confluence, Brazil Jiang, C.; Köken, Mete; Constantinescu, G.; Gualtieri, C. (2026-05-01) Eddy-resolving numerical simulations are conducted to investigate the effects of density contrast between the confluent flows on hydrodynamics, coherent structures and mixing downstream of the confluence between the Negro ...
A comparative analysis of the thermal conductivity measurement of asphalt concrete under steady-state and transient heat transfer conditions DEMİRTÜRK, DUYGU; Öztürk, Hande Işık; GÜLER, ALİ MURAT (2026-05-01) The long-term performance of pavement structures is strongly governed by temperature-dependent distress mechanisms, including rutting and thermally induced stresses. As heat transfer properties regulate internal temperatur...
Fully Stochastic Seepage Analysis through Spatially Randomly Distributed Embankment Dams Bakar, Urun; Yanmaz, Ali Melih (2026-05-01) Spatial random field applications of soil properties integrated with finite element modeling tools are substantial in civil engineering to delineate stochastic characteristics of system responses that reflect real site con...
Techno-economic assessment of floating photovoltaic systems for Türkiye Gökmener, Serkan; Haspolat, Emre; Oğuz, Elif (2026-04-15) This study investigates the techno-economic viability of Floating Photovoltaic (FPV) systems as a sustainable solution for Türkiye's energy requirements, in light of the increasing urge to tackle climate change and shift t...
Physical performance of flexible pavement system with and without a Portland-cement-concrete (PCC) slab for geofoam embankments Akinay, Emre; Öztürk, Hande Işık; Buyukaslan, Abdullah Yasin; Ozer, Abdullah Tolga (2026-04-01) Pavement system design for geofoam block embankments requires special solution due to their low California Bearing Ratio (CBR) values. Hence, the use of a reinforced Portland-cement-concrete (PCC) slab atop the geofoam blo...
A comparative machine learning framework for earthquake damage mapping in Turkey: incorporating MARS and ensemble models in the 2023 Kahramanmaraş earthquake using high-resolution Pléiades imagery Kaya, Ömer; Kuter, Semih; Akyürek, Sevda Zuhal (2026-04-01) Earthquakes cause severe damage to buildings and infrastructure, posing risks to humans and disrupting urban systems. Traditional ground-based assessments are slow and often impractical in dense urban areas. This study eva...
Seismic performance of post-tensioned cast-in-place reinforced concrete structures based on component testing Tuncer, Ertürk; Karageyik, Can; Canbay, Erdem; Muka, Norgen; Binici, Barış (2026-03-15) Post-tensioned buildings offer advantages such as lighter concrete frames, lower seismic demands, and greater resistance to concentrated loads. Although extensive research was conducted on post-tensioned precast beam-to-co...
Cloud-Gap Filtering for Reliable MSG-SEVIRI-Based Snow Cover Records Kuter, Semih; Karaman, Çağrı Hasan; Akpınar, Mustafa Berkay; Akyürek, Sevda Zuhal (2026-03-03) Snow cover is a key variable for climate monitoring and hydrological applications, yet optical satellite observations are strongly limited by cloud contamination, particularly during winter. The EUMETSAT H SAF H34 snow pro...
Recent developments in tsunami preparedness in the North-Eastern Atlantic and Mediterranean region: Challenges, strengths, and weaknesses Daskalaki, Eleni; Aguirre Ayerbe, Ignacio; Baptista, Maria Ana; Amato, Alessandro; CAMBAZ, MUSAVVER DİDEM; Charalampakis, Marinos; Cugliari, Lorenzo; El-Gharabawy, Suzan M.; Hamouda, Amr; Hebert, Hélène; Kalligeris, Nikos; Cantavella Nadal, Juan V.; Özel, Nurcan Meral; Péroche, Matthieu; Yalçıner, Ahmet Cevdet (2026-02-15) Tsunamis pose a low-frequency but high-impact hazard to coastal communities in the North-Eastern Atlantic and Mediterranean (NEAM) region. They are destructive, and their occurrence cannot be predicted. However, communitie...
Numerical model of breaking-up phenomena of buoyant jets in two-layer shear stratified cross-flow validated with experimental data Budak, Ezgi; Köken, Mete; Ger, A.M. (2026-02-01) This study presents a comprehensive numerical investigation of the breaking-up phenomena of buoyant jets in a two-layer shear-stratified cross-flow. A two-layer stratified flow can be defined as a flow field consisting of ...
Assessment of low-cycle fatigue damage in seismic performance-based optimally designed reinforced concrete frames under mainshock-aftershock sequences Razavi, Navid; Gholizadeh, Saeed; Hasançebi, Oğuzhan (2026-02-01) This study examines low-cycle fatigue (LCF) damage in performance-based design (PBD) optimized reinforced concrete moment-resisting frames (RC MRFs) subjected to seismic loading, with a specific focus on mainshockaftershoc...
Next-Generation Snow Cover Monitoring in Near Real Time: Evaluating the EUMETSAT H SAF H43 Product from MTG-FCI across the European Alps Kuter, Semih; Karaman, Çağrı Hasan; Akpınar, Mustafa Berkay; Akyürek, Sevda Zuhal (2026-01-27) Reliable snow cover mapping in mountainous regions is critical for hydrology, climate monitoring, and hazard risk management. This study presents the initial evaluation of the EUMETSAT H SAF H43 snow cover extent product—t...
Integration of Remote Sensing Data in Rain-on-Grid Flood Modelling and Post-Event Validation Using Orthophotos Akpınar, Mustafa Berkay; Akyürek, Sevda Zuhal (2026-01-27) This study explores the integration of remote sensing data into rain-on-grid flood modelling, with a focus on post-event validation using high-resolution orthophotos. The aim is to assess the hydrologic and hydraulic chara...
Snow cover mapping with Meteosat thir generation FCI: initial evaluation of the European Organisation for the Exploitation of Meteorological Satellites H SAF H43 snow mask product Kuter, Semih; Karaman, Cagri Hasan; Akpinar, Mustafa Berkay; Akyürek, Sevda Zuhal (2026-01-13) This study presents the results of the initial validation of the EUMETSAT H SAF H43 snow cover product, the first operational snow product derived from the Flexible Combined Imager (FCI) onboard Meteosat Third Generation (...
Evaluating confidence in geometric matching between 3D point clouds and BIM models by integrating coverage, distance, and distribution metrics Ersöz, Ahmet Bahaddin; Bosche, Frederic (2026-01-01) Accurate and objective assessment of the matching of a Building Information Model (BIM) with 3D point cloud data (PCD) is critical to Scan-to-BIM and Scan-vs-BIM workflows. However, existing methods for PCD-BIM matching ev...
A multi-factor electric-bus (E-bus) energy consumption (EC) methodology for urban public transit routes ERGÜL, HAZAL; Tüydeş Yaman, Hediye (2026-01-01) Advantages of electric buses (E-bus) in emission and air pollution reduction motivate local governments to replace conventionally fuelled public transit buses; however, the main drawbacks of the E-buses are range and charg...

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